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Swift-XRT spectra of GRB 191228A

Last updated after receiving ObsID 00946476004, version 7

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 127 to 86307 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+186 s

NH (Galactic)3.80 × 1020 cm-2
NH (intrinsic)3.28 (+0.24, -0.23) × 1021 cm-2
z of absorber0
Photon index1.98 (+0.05, -0.05)
Flux (0.3-10 keV)
(Observed)
2.08 (+0.06, -0.06) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.15 (+0.07, -0.09) × 10-9 erg cm-2 s-1
Counts to flux (obs)3.79 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.74 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
734.72 (716)
Spectrum exposure216 s

PC mode. Mean photon arrival: T0+14131 s

NH (Galactic)3.80 × 1020 cm-2
NH (intrinsic)3.3 (+0.6, -0.6) × 1021 cm-2
z of absorber0
Photon index2.22 (+0.15, -0.14)
Flux (0.3-10 keV)
(Observed)
6.4 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.11 (+0.08, -0.08) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.41 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.95 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
339.80 (368)
Spectrum exposure10.9 ks

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Late Time spectrum (T0 + 5419 to 86307 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+16474 s

NH (Galactic)3.80 × 1020 cm-2
NH (intrinsic)3.5 (+0.7, -0.6) × 1021 cm-2
z of absorber0
Photon index2.26 (+0.16, -0.15)
Flux (0.3-10 keV)
(Observed)
5.4 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
9.8 (+0.7, -0.8) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.39 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.15 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
321.70 (347)
Spectrum exposure10.5 ks

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